1

I can't setup forwarding of all zero (unknown, I assume)/multicast ethernet frames to multiple unicast IPs (virtual tunnel endpoints), although it seems that it should be supported (also mentioned here on page 8) in kernel since version 3.8.0 when the Dove extension was merged into mainline.

# bridge fdb add 00:00:00:00:00:00 dev vxlandev dst 10.0.1.1
# bridge fdb add 00:00:00:00:00:00 dev vxlandev dst 10.0.1.2
RTNETLINK answers: File exists

I need to use original Linux bridge, not Openvswitch or anything else.

2

I found answer myself - unlike with ip command, you have to use append keyword, not add

therefore it should be:

# bridge fdb add 00:00:00:00:00:00 dev vxlandev dst 10.0.1.1
# bridge fdb append 00:00:00:00:00:00 dev vxlandev dst 10.0.1.2

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